Police searching for a hit-and-run driver who left a six-year-old boy to die have said they have had a "good response" to appeals for help.
Owen Wightman was hit by a car while out playing with his seven-year-old friend close to his home in Wakefield, West Yorkshire, on Saturday.
A team of detectives are scrutinising CCTV footage from a passing bus which captured the car involved.
Officers believe forensic analysis of the video images may even reveal part or all of the vehicle's number plate. Scientific work is also continuing on debris from the car found at the scene on Fishpond Road, in the Chapelthorpe area of the city.
The senior officer leading the investigation said his team were also following up a number of calls made to police following appeals for help.
Detective Superintendent Paul Taylor said: "We've had a good response and we are grateful to the people who have rung in and continue to urge the driver to come forward. Anyone who has information about the his identity to contact us."
Owen was hit as he crossed the busy Fishpond Road at lunchtime on Saturday. Police described how a light blue or grey hatchback driven by a lone white male, probably in his 20s, failed to stop at the scene.
But the car did stop about 100 yards further along the road after taking a left turn into Haveroid Lane. The driver was seen inspecting the front of the car for damage.
Mr Taylor appealed for the driver to come forward rather than his officers having to knock on his door. The officer read out a statement by Owen's parents, Joanne, 33, and Neil, 31, which said they had lost their "baby" and appealed for someone to come forward so they could "lay him to rest".
On Tuesday, The Sun put up a £10,000 reward for information directly resulting in the conviction of those responsible for Owen's death. The charity Crimestoppers also said it was offering a reward of up to £5,000 for crucial information leading to the arrest and conviction of the person responsible.